From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <1c5680df91b16e2577293169d4fd70d6@orthanc.cc.titech.ac.jp>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] mk9660 or mkfs, how much can they archive?
From: YAMANASHI Takeshi <uncover@beat.cc.titech.ac.jp>
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Date: Mon, 23 Feb 2004 16:57:06 +0900
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> I'm trying to archive some parts of my file system using mk9660 and mkfs,
> but both mk9660 and mkfs seem to be failing in creating their archives
> larger than 2GB.  Are there any constraints in them?

My archive files went via u9fs and this was where
2GB-over handling was inappropriate.

I blindly changed GBIT64 macro in /sys/src/cmd/unix/u9fs/fcall.h
as follows and it worked.

	#define	GBIT64(p)	((vlong)((vlong)(p)[0]|((vlong)(p)[1]<<8)|((vlong)(p)[2]<<16)|((vlong)(p)[3]<<24)) |\
				((vlong)((vlong)(p)[4]|((vlong)(p)[5]<<8)|((vlong)(p)[6]<<16)|((vlong)(p)[7]<<24)) << 32))

I am one of those who aren't expected to understand this, though.

P.S.
	Thank you, geoff, for all your help.
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